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Difference between revisions of "Rotary Disc Valve"
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[[Image:Kawasaki Rotary Disk Valve.jpg|thumb|250px|Typical [[Kawasaki]] Rotary Disc Valve]] | |||
The '''Rotary Disk Valve''' or '''Rotary Disc Valve''' is found on [[two stroke]] engines and is a specific design for the transfer of fuel and air to the engine's cylinder for combustion. | The '''Rotary Disk Valve''' or '''Rotary Disc Valve''' is found on [[two stroke]] engines and is a specific design for the transfer of fuel and air to the engine's cylinder for combustion. | ||
==Appearance== | ==Appearance== | ||
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A rotary valve enables the two stroke engine's intake timing to be asymmetrical which is not possible with two stroke piston port type engines. The two stroke piston port type engine's intake timing opens and closes before and after top dead center at the same crank angle making it symmetrical whereas the rotary valve allows the opening to begin earlier and close earlier. | A rotary valve enables the two stroke engine's intake timing to be asymmetrical which is not possible with two stroke piston port type engines. The two stroke piston port type engine's intake timing opens and closes before and after top dead center at the same crank angle making it symmetrical whereas the rotary valve allows the opening to begin earlier and close earlier. | ||
Rotary valve engines can be customized to deliver power over a wider [[RPM]] range or higher [[ | Rotary valve engines can be customized to deliver power over a wider [[RPM]] range or higher [[horsepower]] over a narrower RPM range than either piston port or reed valve engine though they are more mechanically complicated than either one of them. | ||
Also see: [[Reed Inlet Valve]] and [[Piston Inlet Port]] | |||
[[Category:Definitions]] | [[Category:Definitions]] | ||
[[Category:Two stroke]] | |||
[[Category:2-stroke designs]] | |||
[[Category:Engine types]] | |||
[[Category:Rotary Disc Valve motorcycles]] | |||